Manly d



(NoModeL) M. D. BRONNER.

HARROW.

Patented June 23, 1885.

W Wm. M

B y Attorneys N. PETERS, Pholo-Lilhogmpher. wnhm m". ac.

UNITED STATES PATENT OFFICE.

MANLY D. BRONNER, OF ILION, NEW YORK.

HARROW.

SPECIFICATION forming part of Letters Patent No. 320,455, dated June 23, 1885.

Application filed March 17, 1885. (No model.)

To aZZ whom it may concern.-

Be it known that I, IVIANLY D. BRONNER, a citizen of the United States, residing at Ilion, in the county of Herkimer and State of New York, have invented a new and useful Improvement in Harrows, of which the following is a specification, reference being had to the accompanying drawings.

My invention relates to an improvement in barrows; and it consists in the peculiar construction and combination of devices, that will be more fully set forth hereinafter, and particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is atop plan view of a harrow that embodies my invention. Fig. 2 is a vertical sectional view of the same. Fig. 3 is a detailed view. Fig. 4 is a detailed perspective view.

A represents a circular harrow, which is composed of the hub B, the radial arms 0, and the circular rim D. To the upper side of the rim D is secured a metallic ring, E, which projects beyond the outer side of the rim D, as shown at Fig. 2, thereby forming a flange on the upper side of said rim. A vertical bolt, F, passes up through the center of the hub, and on the upwardly-projecting end of this bolt is pivoted a draft-beam, G, and a guidebeam,H. The draft-beam and the guide'beam are thus pivoted independently of each other to the harrow, and are capable of independent movement. By thus pivoting the draft and guide beams independently the movements of the draftbeam, imparted to it by the team, are not communicated to the guide-beam, and the driver, who has hold of the handles at tached to the guide-beam, is not subjected to the strain that would otherwise be upon him if the guide-beam and draft-beam were formed of one piece and moved together. A strap, g, is secured to the under side of the beam G, and is bent around the projecting ring E, and to the outer end of the beam G is secured an attaching-hook, g. A strap, h, is secured to the under side of the beam H, near the rear end of said beam, and is bent under the projecting ring E. To the beam H are secured the handles h, as shown. Each of the radial arms 0 is divided into two bars, a b, on the inner sides of which are secured the opposing aligned vise-blocks d, in the opposing faces of which are formed the openings 2, in which openings, between the blocks, are inserted the harrow-teeth I. Bolts L pass through the bars a b, and nuts L are screwed upon the ends of the bolts and clamp the harrow-teeth between the blocks, as shown.

The harrow is free to turn on its pivotal bolt; but when it is being drawn along on level ground it will remain stationary on its bolt, by reason of the resistance offered by the earth to the teeth being equal on each side of the bolt, but should a stone or other obstruction be encountered the harrow will turn on its pivotal bolt and free itself of the obstruction,as will be very readily understood. When the end of the field is reached,the horses are turned and thedraft-beam swings around, and the driver,by taking hold of the handles, swings the guide-beam around in line with the draft-beam, and the harrow is then ready to be drawn in the reverse or any other desired direction. This construction renders it unnecessary to turn the harrow when changing the direction in which the team is traveling, and thereby renders the harrow easier to draw and prevents strain upon the horses.

Having thus described my invention, I claim- The combination of the circular harrow having the circular plate or ring E and the pivotal bolt at the center of the harrow, the draft-beam G, and the guidebeam H, having handles, said beams being pivoted independently of each other on the bolt F, and the straps h secured to the guide and draft beams, and bearingover and under the projecting outer flange or edge of the ring E, substantially as described.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in presence of two witnesses.

. MANLY D. BRONNER. Witnesses:

CHARLES W. CARPENTER, HENRY R. CARPENTER. 

